File cuttina machine



A. WERD.

2 Sheets-Sheet 2.

(No Model.)

A. WEED. FILE CUTTING MACHINE.

Patented Ma.y 24, 1887.

...MHZ ...i Il-, U15, 1 j

UNITED STATES PATENT OFFICE.

y ALFRED WEED, OF TARRYTOVVN, NEV YORK.

FILE-CUTTING MACHINE.

SPECIFICATION forming part 0f Letters Patent No. 363,492, dated May 24, 1887.

Application filed October 25, 1883. Serial No. 217,160. (No model.)

.T0 @ZZ whom it may concern:

Beit known that I, ALFRED WEED, ofthe village of Tarrytown, in the county of Westchester and State of New York, have made certain new and useful Improvements in File- Cutters, of which the following is a specilication.

My invention relates to improvements in file-cutting machines of that class 4wherein the cutting-tool is secured to a reciprocating tool-carrier; and it consists, primarily, in the provision in a machine of the class named of means whereby the tool may be caused to deliver either light or heavy blows, as desired, and whereby the character of such blows may be changed from light to heavy, or vice versa, Awhlle the machine is in operation.

The invention further consists in means for holding the le-blank in position to be operated upon by the cutting-tool, `and in means to prevent the jumping or displacement of the blank-receiving bed when the machine is in operation; and, linally, the invention consists in the construction, arrangement, and lcombination of the several parts for service, substantially as hereinafter specifically described.

In the drawings, Figure l represents in side elevation a le-cutting machine embodying my invention. Fig. 2 is asectional view taken on the line x x of Fig. 1. Figs. 8 and 4 represent in detail perspective views of the several parts of the mechanism to govern the {ore of the blow delivered by the cutting- Referring` to the drawings, in which similar letters of reference denote similar parts, A designates the base, which may have any desired configuration of outline, and is provided near its bottom with projecting perforate lugs al to receivebolts a', by which it is secured to a suitable foundation. I provide the upper surface of the base with a groove or way, a2,

. to receive a movable bed, B, upon which the file-blank b is secured by a clamp, b', or other 1 suitable means.

ing head, D, the outer surface of which-at equal distances from the middle thereof-is provided with guides d d', having each its inner edge beveled to form a dovetailed way, d, by and in which a tool-carrier, E, is Aheld and operates. The side edges of the tool-carrier E are beveled to correspond with the guides (Z d', as will be understood. If desired, the body of the carrier may be rectangular in cross-section and be held between the guides d diby a plate which is secured to the outer faces of said guides, as indicated by dot-ted lines, Fig. 2.

Dv designates an arm which is formed integral with and projects upwardly from the head D, and which at its top is turned to one side and provided with an enlargement, D3, having a screwthreaded apertura' d4, formed therethrough in alignment with the dovetailed way d2 of thehead D, to receive a screw'- threaded tube, F, through which extends a rod, E', from the carrier E, as shown.

F designates a hand-wheel, which is secu rcd to the upper end of the screw-tube F, to turn Y said tube and move it up or down in its bearings D3, for a purpose presently to be explained.

The tool-carrier Eis moved in one direction by a rotating cam, G, secured within a recess formed in the head D upon a shaft, G', that extends through the hollow stud c, and is provided upon its outer end with a pulley, GZ, to receive the driving-belt G and a balance or ily wheel, G".

El designates a stud, which projects from the carrier E and operates in conjunction with the cam G to operate the carrier. i

From the foregoing description it will be observed that the rotation of the cam G operates to move the carrier E in its guideway d, said carrier being operated in one direction, upward, by the positive action of the cam G upon the 'stud E2, and in the opposite direction, downward, or toward the file-blank, by gravity, whereby successive blows delivered by a cutter held by said carrier upon a fileblank will be of equal force, and would, if all blanks had the same degree of hardness, fully meet and serve the end sought-i. c., the production of a tile having its cuts regular in depth and size. As, however, no two fileblanks have the same degree of hardness, and

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provide the machine whereby said blanks are cut with means for regulating the forcel of the Vblows delivered by the cutter; and, further,

that such adjustment be made while the machine is in operation. To this end I provide the following mechanism, viz:

H and H designate springs-in the present instance shown as formed of rubber-which are placed upon the rod E', the one H between the carrier E and a washer, h, placed upon said rod E, and bearing against the lower end of the screw-th readed rod F, the other, H, upon said rod E', between the upper surface of the hand-wheel F and a washer, h', placed upon the screw-threaded upper end of the rod E and held in position by jam-nuts h2.

It will be apparent that as theI carrier is by its stud E2 and operating-cam G forced to move within certain predetermined limits the force of the blows delivered by the cutter held by said carrier will be determined by the extent to which either of the springs H or H is compressed by the upward or downward movement of the tube F, and also that either of said springs may be compressed while the machine is in operation-the lower spring to impart an increased force to the blow, the upper springl to reduce the force of such blow and to impart to the cutter an action closely approaching one action imparted by the human hand-viz., an elastic resistance to the force of the blow.

` It will be observed that the aXis'of oscillation of the carrier E coincides with the axis of the carrier-'actuating cam G, and that consequently said carrier and its contained cutter will operate at any desired angle as regards the fileblank, the head D being held at the desired adjustment by any required meansas, for instance, by a setscrew, 6, which projects from said head D through a curved slot, 7, in the standard C.

The bed B may be moved back and forth upon the base A by any suitable mechanismas, for instance, by a half-nut, I, hinged to the bed and engaging a screwthreaded rod, I', placed within a groove, i, formed in the base A, parallel with said bed B. The screwthreaded rod I is provided at one end with a worm-geared pinion, I2, which is engaged and rotated by a worm-screw, K, mounted upon a shaft, K', j'ournaled transversely of the base A in bearings 7c, projecting therefrom and rotated through a pulley, K2, from the belt G3.

L designates a tension or belt-tightening pulley, which is mounted upon the end of a lever, L', pivoted to the standard C, to impart tension to the belt G3.

The file-blank b may be held steady upon the bed B by any desired means-as, for instance, by the followingdescribed mechanism, viz:

M designates a pressure-foot, the downwardcurved end of which bears upon the file-blank in advance of the cutter X, and is provided with a shank, m, which is held within the perforate head n of a rod, N, held and adjusted withina bore, n', formed lengthwise through the guide d', or through a lateral projection therefrom. The degree of pressure exerted by the foot M is determined by a lever, O, which is hinged at one end to the standard C, and

. provided with a slot, o, to receive apin which projects from the rod N, as shown by dotted lines. Y

O designates a weight pendent from the outer end of the lever O, to impart force thereto.

G designates a foot-lever,which is fulcrurned to a support, G', and extends below the weight O to raise said weight, and thereby relieve the blank b from the pressure of the foot M.

rIhe cutter X may be held in position in the carrier E by any desired means-as, for in- Stance, by a set-screw, s.

Y designates a belt-shipper of the ordinary description.

The operation ofmy improvement is obvious, and requires no further description, it `being understood that one or the other of the sp rings H or H is placed under compression by the action of the rod F, to imparta greater or less degree of force tothe blows delivered by the cutter X. The springs H and H may be of any suitable material and form-as, for instance, of rubber, as herein shown, or coiled or leaf springs of metal; also, said springs may be placed under compression by means other than that herein described without departing from the spirit and intent of my invention, which contemplates a machine wherein the force of the blows delivered by the cutter may be regulated and determined by the operatorY without necessitating the stoppage of the machine for that purpose, and whereby there is an elastic resistance opposed to the force of the blow of the cutter.

Vithout limiting myself to the exact construction herein described, I claim- 1. The combination of the reciprocatingl toolcarrier and means for moving the latter quickly downward, and a spring arranged to be struck by a shoulder carried by the carrier as it reaches its lowest limit of movement, and means for varying the resistance of said spring, substantially as described.

2. In a le-cutting machine, a tool-carrier positively moved in one direction, provided with means, substantially as described, to im part different degrees of elastic resistanceto the blows of a cutter secured to said carrier, and other means to impart different degrees of elastic force to the downward movement of said cutter, substantially as and for the purpose set forth.-`

3. In a file-cutting machine, a base having an upwardly-projecting standard and a movable ileblankreceiving bed, an oscillating head pivoted to said standard above the top of the bed and provided with guides to receive a tool-carrier, mechanism to reciprocate said carrier, and means, substantially as described,

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to secure said head in desired position, and means to impart an increased or decreased resistance to the downward movement of said carrier, as and for the purpose described.

4. A base, astandard projecting therefrom, an oscillating head pivoted to said standard above said base and provided with guides to receive a tool-carrier, a reciprocating tool-carrier, a rotating cam to positively move said carrier in upward direction, a spring to impart an increased or decreased force to the downward movement of said carrier, anda spring to impart different degrees of elastic resistance to said downward movement of the cutter, substantially as described.

5. A base, a standard projecting therefrom, an oscillating head pivoted to said standard, guides on said head, a reciprocating tool-carrier held by Said guides and provided with a projecting rod, springs placed upon said rod toimpart an increased or decreased resistance to the movement of said carrier, and means, substantially as described7 to regulate the ten sion of said springs, as and for the purpose described.

6. A base, a standard projecting therefrom, an oscillating head pivoted to said standard and provided with an upwardly projecting arm and guides to hold a tool-carrier, a reciprocating tool-carrier, a hollow adjustingscrewmounted in the upwardly-projecting arm of said oscillating head in alignment with the carrier, a rod projecting from said toolcarrier through said adjusting screw, and springs placed on said rod at opposite ends of said adjusting-screw to impart force and resistance to the movement of said tool-carrier,

'as and for the purpose described.

7. The combination of the adjusting-screw F and its operating-wheel F with the oscillating head D, its arm D', and guides d d', car rier E, its rod E', and controlling-springs H and H, substantially as described.

8. The combination of the base A, having standard C, oscillating head D, having arm D and guides d d', reciprocating tool-carrier E, having cutter X, and mechanism, substantially as described, to operate and control the movement of said carrier, with the reciprocatf ing bed B, its feedscrew I', and shaft K', and mechanism, substantially as described, to receive and hold the le-blank upon said bed, as and for the purpose set forth.

9. The combination ofa base having a standard, an oscillating head pivoted thereto and provided with a reciprocating toolcarrier,and 

